An old friend asks Bat to San Francisco to look into the background of her daughter's fiancée which is a cousin. Bat learns she is a frequent visitor at a casino where she seems to win but her fiancée seems to lose - even his life.
Bat seeks to collect a loan given to a reformed gunman who is now a rancher. In order to get his money he must save the man from a trigger-happy sheriff who believes the man is guilty of murder due to a witness's story.
Bat races to the bedside of a dying friend, only to discover the man is quite well and needs Bat's help in his quest to relocate the Stone County seat from Bundy to Sapphira. However, the other gunmen brought in have a bigger idea.
While visiting St. Joseph, Missouri to see his former girlfriend, an up-and-coming soprano, Bat comes to the aid of a businessman who refuses to pay protection money but finds himself accused of being an enforcer for the racket.
Bat's stake is stolen to force him to work for a crooked casino owner. When he refuses, events lead Bat to come to the aid of two beautiful women who are being blackmailed by the owner of Sacramento's largest casino, "The Lady Luck".
When Bat buys a derby hat in a small Missouri town he is aghast at the price. Learning that a freight line owner forces shopkeepers to use only his line to ship their supplies from the river, Bat decides to break his monopoly.
When Bat learns that the two thousand dollars the Bassett brothers owe him is in jeopardy because of the shooting feud between the Bassetts and the Clements, Bat decides to intervene to protect his investment.
When an honest man is elected to be the town sheriff campaigning for fair taxes, the wealthy railroad owner ships his cash out of town to avoid paying his fair share. Bat provides the new sheriff with help to collect the taxes.
An unsophisticated miner runs afoul of a town boss and is framed for murder. When the town's lawyers refuse to represent him properly because they fear for their lives, Bat decides to represent the defendant in court himself.
When General Moran bets a spur of his railroad against a Texas horse ranch that a Kentucky thoroughbred can beat a Texas quarter-horse in a 440 yard sprint, he hires Bat to train his horse to win the wager.
Bat is convinced that a painting purchased by a beautiful friend is a forgery since the original burned. He tries to prove the painting is fake but finds himself on the wrong side of a bet and framed for the murder of a renown art critic.
When threaten by anti-suffrage leaders, Bat decides to help a group of women campaigning for women's suffrage in Wyoming fight a cabal of wealthy ranchers who wish to prevent women from getting the vote fearing homesteaders.
Bat is asked to take half interest in the Long Branch Saloon to help make it profitable. He does so by hiring a female piano player but a crooked mayor and Marshal force him to create the Dodge City Peace Commission to clean up the town.
When Hugh Blaine bets $50,000 that all four hooves of a racehorse are off the ground at once, he agrees to pay Bat 10% of the bet to supply proof. Bat hires a man to take photographs of the trotter in action, but the pictures are stolen.
When two speculators try to corner the stock market by sending former Pony Express riders racing from the mining towns to Denver with the latest information, Bat helps his friend counter the move with by sending news by carrier pigeon.
Bat and his partners fleece an unscrupulous businessman out of half the profits in a gold mine. He exacts revenge by buying up the timber they need to shore up the mine walls, then tries to kill the men with an explosion in the mine.
A stagecoach carrying Bat and Claire, the local sheriff's fiancée, is robbed and Claire is kidnapped. With the sheriff wounded and out of action, Bat tries to rescue Claire and capture the entire gang of kidnappers by himself.
Bat's friend, Ellie Winters, is hired by promoters selling shares in their diamond mine. Although Ellie is convinced that the mine is legitimate, Bat investigates and discovers the owners are salting the mine with high-grade quartz.
On his way to investigate irregularities in a bank's bookkeeping, Bat encounters a gun fight in which a man is killed by two gunmen. Bat finds himself involved with embezzlers, murderers and a new friend - a thieving dog.
Bat spots Lisa Truex in Deadwood who stole $2000 from him. Bat wants to collect but Lisa's boyfriend runs the town. She sells Bat an acre of land she owns that appears to be worthless but Bat finds a way to profit from it if he lives.
Bat receives half of a cane he gave to Jane Taylor and rides to her ranch to investigate. He is forced to choose sides between her family and other ranchers and his old friend, a cattle baron intent on returning to the days of open range.
Three cowboys trick a magician into helping them rob a bank by taking Bat Masterson's gun "as a joke" before he enters the bank. Bat and the magician team up to recover the loot through the aid of another conjurer's stunt.
Bat travels to Yuma to give away the bride at a wedding but discovers the girl's murdered fiancée on the way there. After telling the bride, he joins the posse sent to bring the suspected killer, the Yaqui Kid, to justice.
While awaiting a murder trail in which he will be the star witness, Bat visits a Mexican ranch where, he is told, a fortune in jewels awaits. It's a trap, though, set by the defendant's uncle and Bat will face a firing squad at dawn.
When Ellie Winters is framed for murder, she desperately telegraphs Bat for help. He bails her out to help search for a missing witness but he decides to create a second witness and get Wyatt Earp to play her high priced lawyer.
During a rest stop in Headstone, Texas Bat has a run in with a Judge known for "fine" work. The Judge is up for reelection and Bat has an idea to take advantage of it. The Judge sponsors an exhibition fight and Bat makes a killing.
After Bat and the stagecoach he is riding is robbed, Bat's plan to catch the gang of stagecoach robbers backfires, when not only the silver bullion the stagecoach was carrying is stolen, but the stagecoach itself disappears.
The U.S. Cavalry at Fort Bowie contracts with Bat for a herd of 55 horses. When his herd is stolen and his men all killed or wounded, Bat determines to recapture his herd and bring the killers to justice but it requires some trickery.
When Bat meets cowboys on a trail drive, he discovers that a gambler has appropriated his name and set up a casino called "Masterson's Arcadia Club" where all the ranch hands passing through town lose all their money playing crooked games.
While his stage makes a stop, Bat is arrested, charged with possession of a gun and assessed a staggering fine. When Bat learns that the local judge runs the town as a personal fiefdom, he decides to change things when a man faces hanging.
After Bat's good friend and railroad tycoon Hugh Blaine is conned in a complex land and cattle swindle, Blaine hires Bat to get his money back and bring the crooks to justice. However, Bat ends up digging his own grave.
When depositing his winnings, Bat and the bank are robbed by a gang of Mexican bandits. Bat tracks the bandits and their double-crossing female accomplice through Spanish-American communities to retrieve his money and the bank's money.
Bat is asked to find how stolen Mexican cattle, many diseased, are entering Texas and mingling with local animals. With the help of the local sheriff he prints a wanted poster which he hopes serve as his introduction to the local rustlers.
Bat down and out on his luck is hired as the bodyguard of a beautiful widow. She must wear a fabulously expensive diamond to the Governor's reception that evening but before they can leave the necklace is stolen while Bat is distracted.
When a man Bat staked to search for the Lost Dutchman's Mine disappears, Bat buys a map from a too agreeable bartender and sets off in pursuit. Bat soon learns that his friend is but one of many miners who have recently vanished.
Before Bat's partner in a casino venture is dies, he asks Masterson to deliver his share of the money to his brother on the Mexican border. Bat learns that the man is rumored to lead a gang of rustlers.
An old sea captain has dismantled his clan's Scottish castle and is rebuilding it in San Francisco. A stockholder serves him with a restraining order, claiming he's wasting the business' assets constructing such an extravagant building.